CHM113 FINAL EXAM 2025/2026
QUESTIONS AND ANSWERS 100% PASS
Which of the following is NOT a compound? - ANS O2, oxygen is a molecule
What is the chemical symbol for the element, copper? - ANS Cu
Which property is a chemical property - ANS flammability
Which of the following mixtures is heterogeneous? - ANS granite
Which of the following processes is/are physical changes? Select all that apply - ANS water
evaporating, tearing a piece of aluminum in half
Which unit is NOT an SI base unit? - ANS celcius
Which metric prefix means 10^-9 - ANS nano
Which of the following measurements has three significant figures? - ANS .00871 m3
An Olympic-sized swimming pool can hold approximately 6.60 x 105 gallons of water. Calculate
the volume of the water in cubic meters (m3). Express your answer with the correct number of
significant figures.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,Hint: 1 gal = 3.785 L - ANS 2.50 x 10^3
Aluminum has a density of 2.70 g/cm3. If a piece of aluminum foil weighs 0.853 g, what is the
volume of the piece of foil (in cm3)? Express your answer with the correct number of significant
figures. - ANS .316
Which scientist is credited with the discovery of the proton? - ANS Ernest Rutherford
How many protons, neutrons and electrons are in the isotope, 238U? - ANS 92 protons, 146
neutrons, 92 electrons
Which property is NOT a property of a non-metal? - ANS Lose electrons easily
Group 6A on the periodic table is also known as _______________. - ANS Chalcogens
Which of the following statements is false regarding cations? - ANS polyatomic ions cannot
be cations
What is the correct formula for a compound composed of zinc and chlorine? - ANS ZnCl2
What is the oxidation number for the iron atom in the compound, Fe3(PO4)2? - ANS +2
What is the correct name for the chemical formula, Mg(OH)2? - ANS magnesium hydroxide
Which of the following chemical formulas is correctly paired with its name? - ANS P4O10,
tetraphosphorus decoxide
Which of the following is NOT a strong acid? - ANS HF
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, Which of the following would a chemical equation NOT include? - ANS The masses of both
the reactants and the products
When the following equation is correctly balanced, the coefficient in front of NaN3 is
__________. - ANS 2
What is the molecular weight (in amu) of glucose (C6H12O6)? - ANS 180.2
What is the mass of Ba (g) in 3.50 g BaCO3? - ANS 2.44
How many H atoms are in 2 moles of H2SO4? - ANS 2.409 * 10^24
What is the mass (in g) of 0.5722 mole of chlorine gas? - ANS 40.57
What is the empirical formula of a compound that contains 27.0% S, 13.4% O and 59.6% Cl by
mass? - ANS SOCl2
Which of the following statements is incorrect about the equation below? - ANS When 4
molecules of nitrogen gas are produced, at least 6 molecules of oxygen gas and 10 molecules of
ammonia must have reacted.
Under appropriate conditions, nitrogen gas and hydrogen gas undergo a combination reaction
to yield ammonia:
N2 (g) + 3 H2 (g) → 2 NH3 (g)
How much ammonia (in g) is produced if 3.00 g of N2 and 2.85 g of H2 are allowed to react? -
ANS 3.65
If the theoretical yield of a reaction was 58.8 g but the actual yield was only 12.2 g, then what is
the percent yield of the reaction? - ANS 20.7%
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
QUESTIONS AND ANSWERS 100% PASS
Which of the following is NOT a compound? - ANS O2, oxygen is a molecule
What is the chemical symbol for the element, copper? - ANS Cu
Which property is a chemical property - ANS flammability
Which of the following mixtures is heterogeneous? - ANS granite
Which of the following processes is/are physical changes? Select all that apply - ANS water
evaporating, tearing a piece of aluminum in half
Which unit is NOT an SI base unit? - ANS celcius
Which metric prefix means 10^-9 - ANS nano
Which of the following measurements has three significant figures? - ANS .00871 m3
An Olympic-sized swimming pool can hold approximately 6.60 x 105 gallons of water. Calculate
the volume of the water in cubic meters (m3). Express your answer with the correct number of
significant figures.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,Hint: 1 gal = 3.785 L - ANS 2.50 x 10^3
Aluminum has a density of 2.70 g/cm3. If a piece of aluminum foil weighs 0.853 g, what is the
volume of the piece of foil (in cm3)? Express your answer with the correct number of significant
figures. - ANS .316
Which scientist is credited with the discovery of the proton? - ANS Ernest Rutherford
How many protons, neutrons and electrons are in the isotope, 238U? - ANS 92 protons, 146
neutrons, 92 electrons
Which property is NOT a property of a non-metal? - ANS Lose electrons easily
Group 6A on the periodic table is also known as _______________. - ANS Chalcogens
Which of the following statements is false regarding cations? - ANS polyatomic ions cannot
be cations
What is the correct formula for a compound composed of zinc and chlorine? - ANS ZnCl2
What is the oxidation number for the iron atom in the compound, Fe3(PO4)2? - ANS +2
What is the correct name for the chemical formula, Mg(OH)2? - ANS magnesium hydroxide
Which of the following chemical formulas is correctly paired with its name? - ANS P4O10,
tetraphosphorus decoxide
Which of the following is NOT a strong acid? - ANS HF
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, Which of the following would a chemical equation NOT include? - ANS The masses of both
the reactants and the products
When the following equation is correctly balanced, the coefficient in front of NaN3 is
__________. - ANS 2
What is the molecular weight (in amu) of glucose (C6H12O6)? - ANS 180.2
What is the mass of Ba (g) in 3.50 g BaCO3? - ANS 2.44
How many H atoms are in 2 moles of H2SO4? - ANS 2.409 * 10^24
What is the mass (in g) of 0.5722 mole of chlorine gas? - ANS 40.57
What is the empirical formula of a compound that contains 27.0% S, 13.4% O and 59.6% Cl by
mass? - ANS SOCl2
Which of the following statements is incorrect about the equation below? - ANS When 4
molecules of nitrogen gas are produced, at least 6 molecules of oxygen gas and 10 molecules of
ammonia must have reacted.
Under appropriate conditions, nitrogen gas and hydrogen gas undergo a combination reaction
to yield ammonia:
N2 (g) + 3 H2 (g) → 2 NH3 (g)
How much ammonia (in g) is produced if 3.00 g of N2 and 2.85 g of H2 are allowed to react? -
ANS 3.65
If the theoretical yield of a reaction was 58.8 g but the actual yield was only 12.2 g, then what is
the percent yield of the reaction? - ANS 20.7%
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
